Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Sunday & Sunday
Areas of light snow ahead of a strong frontal band will mainly affect the Olympics and west slopes of the Cascades this morning. A thin but strong cold front should blow through the Olympics later this morning and the Cascades around noon, bringing with it a round of heavier precipitation and increasing winds. Convective showers combined with orographic westerly flow following the frontal passage will keep scattered but occasionally moderate showers and strong westerly winds going through this evening.
A wetter and more significant weather system is on tap for later Sunday night and Monday as warm frontal precipitation begins to move into the region late tonight. Precipitation rates should increase during the day on Sunday with many areas becoming moderate to heavy by the afternoon. A slow warming trend will ensue with westerly winds increasing throughout the day. Moderate to heavy precipitation, warming, and significant winds will continue into Monday night.
Weather Forecast
Hurricane Ridge
| Sunday | Light to occasionally moderate snow becoming scattered light to moderate snow showers by mid-day. A few sunbreaks likely in the afternoon. Strong winds. |
Mt. Baker
| Sunday | Light to occasionally moderate snow becoming light to moderate snow showers by early afternoon. Winds increasing and becoming strong by mid-day. |
Washington Pass and Leavenworth
| Sunday | Light snow developing late morning, becoming light to occasinally moderate snow showers in the afternoon, heaviest near the Cascade crest. West wind increasing late. |
Stevens and Snoqualmie Pass
| Sunday | Light to occasionally moderate snow becoming light to moderate snow showers by early afternoon. Winds increasing and becoming strong by mid-day at Pass and ridgetop levels. |
Mt. Rainier, Crystal and White Pass
| Sunday | Light to occasionally moderate snow becoming light to moderate snow showers by early afternoon. Winds increasing and becoming strong by mid-day. |
Mt. Hood
| Sunday | Light to occasionally moderate snow developing this morning becoming light to moderate snow showers by early afternoon. Winds increasing and becoming strong by mid-day. |
Issued: 7:08 AM PST Sunday, January 5, 2020
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Sunday Morning | Snow Level * | 3000' | 2000' | 1000' | 1500' | 2000' | 2000' | 2500' | 3000' |
| Sunday Afternoon | Snow Level | 1500' | 2000' | 1500' | 2000' | 2000' | 2000' | 2000' | 2500' |
| Sunday Evening | Snow Level | 1500' | 1000' | 1000' | 1500' | 1000' | 1500' | 1500' | 2500' |
| Sunday Night | Snow Level | 2500' | 1000' | 1000' | 1500' | 1500' | 2000' | 2000' | 3000' |
| Monday Morning | Snow Level * | 4500' | 2000' | 1500' | 2500' | 2000' | 3000' | 3500' | 4500' |
| Monday Afternoon | Snow Level | 6000' | 4000' | 3000' | 4000' | 4000' | 4500' | 4500' | 5000' |
| Hurricane Ridge | Elevation |
|---|---|
| Sunday Morning |
Snow Level 3000' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 1500' |
| Sunday Evening |
Snow Level 1500' |
| Sunday Night |
Snow Level 2500' |
| Monday Morning |
Snow Level 4500' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 6000' |
| Mt. Baker | Elevation |
|---|---|
| Sunday Morning |
Snow Level 2000' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 2000' |
| Sunday Evening |
Snow Level 1000' |
| Sunday Night |
Snow Level 1000' |
| Monday Morning |
Snow Level 2000' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 4000' |
| Washington Pass | Elevation |
|---|---|
| Sunday Morning |
Snow Level 1000' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 1500' |
| Sunday Evening |
Snow Level 1000' |
| Sunday Night |
Snow Level 1000' |
| Monday Morning |
Snow Level 1500' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 3000' |
| Leavenworth | Elevation |
|---|---|
| Sunday Morning |
Snow Level 1500' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 2000' |
| Sunday Evening |
Snow Level 1500' |
| Sunday Night |
Snow Level 1500' |
| Monday Morning |
Snow Level 2500' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 4000' |
| Stevens Pass | Elevation |
|---|---|
| Sunday Morning |
Snow Level 2000' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 2000' |
| Sunday Evening |
Snow Level 1000' |
| Sunday Night |
Snow Level 1500' |
| Monday Morning |
Snow Level 2000' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 4000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Sunday Morning |
Snow Level 2000' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 2000' |
| Sunday Evening |
Snow Level 1500' |
| Sunday Night |
Snow Level 2000' |
| Monday Morning |
Snow Level 3000' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 4500' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Sunday Morning |
Snow Level 2500' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 2000' |
| Sunday Evening |
Snow Level 1500' |
| Sunday Night |
Snow Level 2000' |
| Monday Morning |
Snow Level 3500' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 4500' |
| Mt. Hood | Elevation |
|---|---|
| Sunday Morning |
Snow Level 3000' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 2500' |
| Sunday Evening |
Snow Level 2500' |
| Sunday Night |
Snow Level 3000' |
| Monday Morning |
Snow Level 4500' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 5000' |
* Easterly flow in the Cascade Passes can cause locally lower Snow or Freezing levels than areas further west.
Freezing Level is when no precipitation is forecast.
Precipitation Forecast
| Sunday | Sunday Night | Sunday | |
|---|---|---|---|
| 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0.25 - 0.50 | 0.25 - 0.50 | 1.00 |
| Mt Baker Ski Area | 1.00 | 0.25 - 0.50 | 1.00 |
| Washington Pass | 0.25 | LT 0.25 | 0.50 |
| Leavenworth | LT 0.10 | LT 0.10 | 0.25 - 0.50 |
| Stevens Pass | 0.50 | 0.50 | 1.00 - 1.50 |
| Snoqualmie Pass | 0.50 | 0.50 - 0.75 | 1.50 - 2.00 |
| Mission Ridge | LT 0.10 | LT 0.10 | 0.25 |
| Crystal Mt | 0.25 - 0.50 | 0.25 | 0.75 -1.00 |
| Paradise | 0.50 - 0.75 | 0.50 - 0.75 | 2.00 |
| White Pass | 0.25 - 0.50 | 0.50 | 1.00 - 1.50 |
| Mt Hood Meadows | 0.50 - 0.75 | 0.50 | 1.00 - 1.50 |
| Timberline | 0.50 - 0.75 | 0.50 - 0.75 | 1.50 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Sunday | 0.25 - 0.50 |
| Sunday Night | 0.25 - 0.50 |
| Sunday | 1.00 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Sunday | 1.00 |
| Sunday Night | 0.25 - 0.50 |
| Sunday | 1.00 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Sunday | 0.25 |
| Sunday Night | LT 0.25 |
| Sunday | 0.50 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Sunday | LT 0.10 |
| Sunday Night | LT 0.10 |
| Sunday | 0.25 - 0.50 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Sunday | 0.50 |
| Sunday Night | 0.50 |
| Sunday | 1.00 - 1.50 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Sunday | 0.50 |
| Sunday Night | 0.50 - 0.75 |
| Sunday | 1.50 - 2.00 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Sunday | LT 0.10 |
| Sunday Night | LT 0.10 |
| Sunday | 0.25 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Sunday | 0.25 - 0.50 |
| Sunday Night | 0.25 |
| Sunday | 0.75 -1.00 |
| Paradise | Precipitation Forecast |
|---|---|
| Sunday | 0.50 - 0.75 |
| Sunday Night | 0.50 - 0.75 |
| Sunday | 2.00 |
| White Pass | Precipitation Forecast |
|---|---|
| Sunday | 0.25 - 0.50 |
| Sunday Night | 0.50 |
| Sunday | 1.00 - 1.50 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Sunday | 0.50 - 0.75 |
| Sunday Night | 0.50 |
| Sunday | 1.00 - 1.50 |
| Timberline | Precipitation Forecast |
|---|---|
| Sunday | 0.50 - 0.75 |
| Sunday Night | 0.50 - 0.75 |
| Sunday | 1.50 |
LT = less than; WE or Water equivalent is the liquid water equivalent of melted snow in hundredths of inches. As a rough approximation 1 inch of snow = about .10 inches WE, or 10 inches of snow = about 1 inch WE.
Issued: 7:08 AM PST Sunday, January 5, 2020
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Sunday Morning | S 20 - 30 | S 15 - 25 | SE 15 - 25 | SW 15 - 25 | SW 10 - 20 |
| Sunday Afternoon | WSW 20 - 30 | SW 25 - 35 | W 25 - 35 | WSW 20 - 30 | W 30 - 40 |
| Sunday Evening | WSW 15 - 25 | SW 15 - 25 | W 25 - 35 | WSW 20 - 30 | W 30 - 40 |
| Sunday Night | SW 10 - 20 | SW 10 - 20 | W 15 - 25 | SW 15 - 25 | W 30 - 40 |
| Monday Morning | SW 20 - 30 | SW 15 - 25 | WSW 20 - 30 | SW 25 - 35 | W 35 - 45 |
| Monday Afternoon | SW 20 - 30 | SW 20 - 30 | WSW 35 - 45 | SW 30 - 40 | W 40 - 50 |
| Hurricane Ridge | Elevation |
|---|---|
| Sunday Morning | S 20 - 30 |
| Sunday Afternoon | WSW 20 - 30 |
| Sunday Evening | WSW 15 - 25 |
| Sunday Night | SW 10 - 20 |
| Monday Morning | SW 20 - 30 |
| Monday Afternoon | SW 20 - 30 |
| Mt. Baker | Elevation |
|---|---|
| Sunday Morning | S 15 - 25 |
| Sunday Afternoon | SW 25 - 35 |
| Sunday Evening | SW 15 - 25 |
| Sunday Night | SW 10 - 20 |
| Monday Morning | SW 15 - 25 |
| Monday Afternoon | SW 20 - 30 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Sunday Morning | SE 15 - 25 |
| Sunday Afternoon | W 25 - 35 |
| Sunday Evening | W 25 - 35 |
| Sunday Night | W 15 - 25 |
| Monday Morning | WSW 20 - 30 |
| Monday Afternoon | WSW 35 - 45 |
| Mt. Rainier | Elevation |
|---|---|
| Sunday Morning | SW 15 - 25 |
| Sunday Afternoon | WSW 20 - 30 |
| Sunday Evening | WSW 20 - 30 |
| Sunday Night | SW 15 - 25 |
| Monday Morning | SW 25 - 35 |
| Monday Afternoon | SW 30 - 40 |
| Mt. Hood | Elevation |
|---|---|
| Sunday Morning | SW 10 - 20 |
| Sunday Afternoon | W 30 - 40 |
| Sunday Evening | W 30 - 40 |
| Sunday Night | W 30 - 40 |
| Monday Morning | W 35 - 45 |
| Monday Afternoon | W 40 - 50 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Sunday Morning | S 20 - 30 |
| Sunday Afternoon | WSW 20 - 30 |
| Sunday Evening | WSW 15 - 25 |
| Sunday Night | SW 10 - 20 |
| Monday Morning | SW 20 - 30 |
| Monday Afternoon | SW 20 - 30 |
| Mt. Baker | Direction - Speed |
|---|---|
| Sunday Morning | S 15 - 25 |
| Sunday Afternoon | SW 25 - 35 |
| Sunday Evening | SW 15 - 25 |
| Sunday Night | SW 10 - 20 |
| Monday Morning | SW 15 - 25 |
| Monday Afternoon | SW 20 - 30 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Sunday Morning | SE 15 - 25 |
| Sunday Afternoon | W 25 - 35 |
| Sunday Evening | W 25 - 35 |
| Sunday Night | W 15 - 25 |
| Monday Morning | WSW 20 - 30 |
| Monday Afternoon | WSW 35 - 45 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Sunday Morning | SW 15 - 25 |
| Sunday Afternoon | WSW 20 - 30 |
| Sunday Evening | WSW 20 - 30 |
| Sunday Night | SW 15 - 25 |
| Monday Morning | SW 25 - 35 |
| Monday Afternoon | SW 30 - 40 |
| Mt. Hood | Direction - Speed |
|---|---|
| Sunday Morning | SW 10 - 20 |
| Sunday Afternoon | W 30 - 40 |
| Sunday Evening | W 30 - 40 |
| Sunday Night | W 30 - 40 |
| Monday Morning | W 35 - 45 |
| Monday Afternoon | W 40 - 50 |
Directions above indicate the direction the wind blows from on the 16-point cardinal scale. These winds indicate "free" winds, or those winds in the atmosphere not influenced by terrain. Topographical effects may produce greater or lower wind speeds in certain locations as well as significant variations in direction.
Free Winds at 9000' (mph)
| Mt. Baker | Washington Pass | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Sunday Morning | SW 25 - 35 | SW 25 - 35 | SW 25 - 35 | SW 25 - 35 | SW 25 - 35 |
| Sunday Afternoon | SW 40 - 50 | SW 30 - 40 | WSW 40 - 50 | WSW 35 - 45 | W 50 - 60 |
| Sunday Evening | WSW 35 - 45 | W 40 - 50 | W 45 - 55 | W 40 - 50 | W 50 - 60 |
| Sunday Night | WSW 35 - 45 | W 40 - 50 | W 50 - 60 | W 45 - 55 | W 55 - 65 |
| Monday Morning | SW 30 - 40 | SW 35 - 45 | W 55 - 65 | W 50 - 60 | W 55 - 65 |
| Monday Afternoon | W 40 - 50 | W 40 - 50 | W 55 - 65 | W 50 - 60 | W 55 - 65 |
| Mt. Baker | Direction - Speed |
|---|---|
| Sunday Morning | SW 25 - 35 |
| Sunday Afternoon | SW 40 - 50 |
| Sunday Evening | WSW 35 - 45 |
| Sunday Night | WSW 35 - 45 |
| Monday Morning | SW 30 - 40 |
| Monday Afternoon | W 40 - 50 |
| Washington Pass | Direction - Speed |
|---|---|
| Sunday Morning | SW 25 - 35 |
| Sunday Afternoon | SW 30 - 40 |
| Sunday Evening | W 40 - 50 |
| Sunday Night | W 40 - 50 |
| Monday Morning | SW 35 - 45 |
| Monday Afternoon | W 40 - 50 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Sunday Morning | SW 25 - 35 |
| Sunday Afternoon | WSW 40 - 50 |
| Sunday Evening | W 45 - 55 |
| Sunday Night | W 50 - 60 |
| Monday Morning | W 55 - 65 |
| Monday Afternoon | W 55 - 65 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Sunday Morning | SW 25 - 35 |
| Sunday Afternoon | WSW 35 - 45 |
| Sunday Evening | W 40 - 50 |
| Sunday Night | W 45 - 55 |
| Monday Morning | W 50 - 60 |
| Monday Afternoon | W 50 - 60 |
| Mt. Hood | Direction - Speed |
|---|---|
| Sunday Morning | SW 25 - 35 |
| Sunday Afternoon | W 50 - 60 |
| Sunday Evening | W 50 - 60 |
| Sunday Night | W 55 - 65 |
| Monday Morning | W 55 - 65 |
| Monday Afternoon | W 55 - 65 |
Directions above indicate the direction the wind blows from on the 16-point cardinal scale. These winds indicate "free" winds, or those winds in the atmosphere not influenced by terrain. Topographical effects may produce greater or lower wind speeds in certain locations as well as significant variations in direction.
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Previous forecast from Jan 4, 2020
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